CN111713996A

CN111713996A - Toaster switch assembly

Info

Publication number: CN111713996A
Application number: CN202010709926.3A
Authority: CN
Inventors: 古延民
Original assignee: Guangdong Longde Electric Appliance Co ltd
Current assignee: Guangdong Longde Electric Appliance Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2020-09-29

Abstract

The invention discloses a toaster switch assembly which comprises a switch main body, wherein an electromagnet is arranged on the switch main body and is connected with a contact piece assembly; the movable cover plate is movably arranged on the switch main body, is positioned above the electromagnet and always shields the electromagnet, and is provided with a magnetic attraction piece; the sliding part is arranged above the movable cover plate in a sliding mode, when sliding downwards, the sliding part can drive the movable cover plate to move downwards and is linked with the contact piece assembly to be conducted so that the electromagnet is electrified, and the sliding part is connected with a second elastic reset piece which drives the sliding part to ascend. Above toaster switch module is in the use, and removable cover shelters from the top region near the electro-magnet all the time, can avoid the foreign matter to drop and influence toaster switch module's normal work, ensures toaster switch module work's reliability.

Description

Toaster switch assembly

Technical Field

The invention relates to the technical field of household appliances, in particular to a switch assembly of a toaster.

Background

The existing toaster switch is of a split structure and comprises a sliding part and a switch main body, wherein a magnetic attraction piece is arranged on the sliding part, an electromagnet is arranged on the switch main body, a contact piece component which can be connected with an external circuit to enable the electromagnet to be switched on and off is arranged in the switch main body, when the sliding part descends, the contact piece component can be triggered to be communicated with the external circuit to enable the electromagnet to be switched on, and the electromagnet attracts the magnetic attraction piece on the sliding part, so that the sliding part is fixed relative to the switch main body. The structure of the toaster switch can be referred to in patent document with application number CN201420081648.1 and name a toaster switch.

According to the toaster switch with the structure, when the sliding part is separated from the switch main body, the upper part of the switch main body is exposed in the air, bread scraps or other foreign matters easily fall onto the electromagnet or other parts from the upper part in the using process of the toaster, so that the suction effect between the sliding part and the switch main body is influenced, and the toaster switch cannot work if the bread scraps or the foreign matters fall onto the contact piece assembly. Secondly, the current toaster switch does not have an anti-falling structure, and when the toaster normally works, for example, when the sliding part is subjected to an upward external force, the sliding part can be directly separated from the switch main body.

Disclosure of Invention

To overcome the disadvantages of the prior art, it is an object of the present invention to provide a toaster switch assembly which operates to prevent foreign objects from falling off to affect its normal operation.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the invention discloses a toaster switch assembly, comprising: the switch comprises a switch main body, wherein an electromagnet is arranged on the switch main body and is connected with a contact piece assembly for controlling the electromagnet to be powered on or powered off; the movable cover plate is movably arranged on the switch main body, is positioned above the electromagnet and always shields the electromagnet, a magnetic attraction piece matched with the electromagnet is arranged on the movable cover plate, and the movable cover plate is connected with a first elastic reset piece driving the magnetic attraction piece to be separated from the electromagnet; the sliding part is arranged above the movable cover plate in a sliding mode along the vertical direction, the sliding part can drive the movable cover plate to move downwards when sliding downwards and is linked with the contact piece assembly to be conducted so that the electromagnet is electrified, and the sliding part is connected with a second elastic reset piece which drives the sliding part to ascend to be far away from the movable cover plate. The toaster switch assembly with the structure comprises a switch main body, a magnet and a movable cover plate, wherein the electromagnet is matched with the magnet, the magnet is arranged on the movable cover plate, the movable cover plate is movably arranged on the switch main body and always shields the upper area close to the electromagnet, and the movable cover plate can prevent foreign matters from falling to influence the normal work of the toaster switch assembly and ensure the reliability of the work of the toaster switch assembly in the use process.

As a preferred embodiment of the present invention, an anti-separation mechanism is disposed between the sliding member and the movable cover plate, and when the magnetic member is attracted to the electromagnet, the anti-separation mechanism can prevent the sliding member from separating from the movable cover plate upwards.

As a preferred embodiment of the present invention, one end of the movable cover plate is pivotally connected to the switch main body, and the other end of the movable cover plate can swing relative to the switch main body, the anti-falling mechanism includes a hook portion provided on the movable cover plate and an anti-falling block provided on the slider, and the anti-falling block slides downward along with the slider to drive the other end of the movable cover plate to swing downward relative to the switch main body, so that the hook portion is combined with the anti-falling block. When the slider slides downwards to contact with the movable cover plate, the movable cover plate swings downwards to conduct the contact piece assembly, the electromagnet is electrified to attract the magnetic attraction piece on the movable cover plate downwards, in the process, the anti-falling block enters the hook portion, the slider has a rising trend in the action of the first elastic reset piece, the hook portion compresses the anti-falling block to prevent the sliding piece from moving upwards, the structure is simple and reliable, the upper area close to the electromagnet can be always shielded under the condition that the displacement of the movable cover plate is small, and the possibility that foreign matters fall on the electromagnet to influence the use of the toaster switch assembly can be reduced.

Preferably, in order to limit the upward swinging angle of the movable cover plate relative to the switch main body, ensure that the movable cover plate can completely shield the position right above the electromagnet, prevent foreign matters from vertically falling on the electromagnet and ensure the normal operation of the toaster switch assembly, a limit convex part is arranged at the position of the movable cover plate, which is close to the pivot joint of the movable cover plate, and a stop surface which is abutted against the limit convex part is arranged on the switch main body.

In some embodiments of the invention, the hook groove of the hook portion comprises a vertical section and a horizontal section, the vertical section is arranged on the upper end surface of the movable cover plate, the horizontal section is connected with the vertical section, the upper end of the anti-falling block is provided with an anti-falling surface matched with the horizontal section, the anti-falling surface abuts against the horizontal section under the driving action of the second elastic resetting piece, meanwhile, the electromagnet is attracted by the magnetic attraction piece, and the horizontal section keeps a state of pressing the anti-falling surface.

In some embodiments of the present invention, the contact assembly includes a fixed contact, a movable contact, a switch link and a driving rod, the fixed contact is fixedly disposed on the switch main body, one end of the switch link is rotatably connected to the switch main body, the other end of the switch link is connected to the driving rod through the first elastic reset piece, the driving rod extends upward outside the switch main body and can abut against one end of the movable cover plate that swings downward, the movable contact elastically abuts against the lower portion of the switch link to swing downward following the switch link and electrically connect to the fixed contact, and the switch link is further connected to a third elastic reset piece that drives the switch link to swing upward and reset. When the sliding piece moves downwards to be in contact with the movable cover plate, the movable cover plate swings downwards to drive the driving rod to press downwards, the driving rod pushes the switch connecting rod to swing downwards through the first elastic resetting piece, the movable contact piece is driven to be in contact with the fixed contact piece when the switch connecting rod swings, so that the electromagnet is powered on, the electromagnet adsorbs the magnetic attraction piece on the movable cover plate, and the anti-falling block is combined with the hook portion to prevent the sliding piece from being separated from the movable cover plate.

Preferably, in order to facilitate assembly of each component of the toaster switch assembly, the switch main body includes a base and a housing fastened to the base, an accommodating space is defined between the base and the housing, the switch connecting rod is located in the accommodating space, the fixed contact piece and the movable contact piece are both clamped at a joint of the base and the housing, one ends of the fixed contact piece and the movable contact piece extend out of the switch main body and are connected with an external circuit, the other end of the fixed contact piece is located in the accommodating space, and the other end of the movable contact piece extends above the other end of the fixed contact piece and is elastically abutted against the lower portion of the switch connecting rod.

In order to further facilitate the installation and the positioning of the fixed contact piece and the movable contact piece, a plurality of positioning and mounting columns extending downwards are arranged on the shell, through holes corresponding to the positioning and mounting columns one by one are formed in the fixed contact piece and the movable contact piece, and an avoiding hole groove used for avoiding the positioning and mounting columns is formed in the base.

The third elastic reset piece is a first pressure spring, the base is provided with a positioning column for sleeving and inserting the lower end of the first pressure spring, and the lower end face of the switch connecting rod is provided with a positioning counter bore for positioning the upper end of the pressure spring to prevent the first pressure spring from being separated from the position between the base and the switch connecting rod.

Preferably, a guide through hole corresponding to the drive rod is formed in the switch main body, a throat is formed in the upper portion of the guide through hole, a guide convex portion capable of moving up and down in the guide through hole and preventing the drive rod from being separated from the throat is formed in the circumferential surface of the drive rod, the first elastic reset piece is a second pressure spring accommodated in the guide through hole, a guide column facing the guide through hole is formed in the switch connecting rod, and two ends of the second pressure spring are respectively sleeved on the guide column and the drive rod.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the structure of the toaster switch assembly of the present invention with the slider and the removable cover plate in a separated state;

FIG. 2 is a schematic view of the housing of FIG. 1 with the housing removed;

FIG. 3 is a schematic view of the slider of FIG. 1 in combination with a removable cover;

FIG. 4 is a schematic view of the housing of FIG. 3 with the housing removed;

FIG. 5 is an exploded view of the toaster switch assembly of the present invention;

fig. 6 is a schematic view of the internal structure of fig. 3.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

Referring to fig. 1 and 5, the present invention discloses a toaster switch assembly comprising: the switch comprises a switch main body 1, wherein an electromagnet 2 is arranged on the switch main body 1, and the electromagnet 2 is connected with a contact piece assembly for controlling the electromagnet to be powered on or off; the movable cover plate 4 is movably arranged on the switch main body 1, is positioned above the electromagnet 2 and always shields the electromagnet 2, a magnetic attraction piece 5 matched with the electromagnet 2 is arranged on the movable cover plate 4, and the movable cover plate 4 is connected with a first elastic reset piece 6 driving the magnetic attraction piece 5 to be separated from the electromagnet 2; the sliding part 7 is arranged above the movable cover plate 4 in a sliding mode along the vertical direction, the sliding part 7 can drive the movable cover plate 4 to move downwards when sliding downwards and is linked with the contact piece assembly to be conducted so as to enable the electromagnet 2 to be electrified, and the sliding part 7 is connected with a second elastic resetting part 9 which drives the sliding part to ascend to be far away from the movable cover plate 4. The toaster switch assembly of the above structure is provided with the magnet attracting piece 5 matched with the electromagnet 2 on the movable cover plate 4, the movable cover plate 4 is movably arranged on the switch main body 1 and is always shielded from the upper area close to the electromagnet 2, and in the use process, the movable cover plate 4 can avoid the foreign matters from falling to influence the normal work of the toaster switch assembly, thereby ensuring the reliability of the work of the toaster switch assembly.

Referring to fig. 1 or fig. 3, as a preferred embodiment of the present invention, an anti-separation mechanism 8 is disposed between the sliding member 7 and the movable cover plate 4, and when the magnetic member 5 is engaged with the electromagnet 2, the anti-separation mechanism 8 can prevent the sliding member 7 from separating upward from the movable cover plate 4, so as to further improve the reliability of the operation of the toaster switch assembly.

Preferably, one end of the movable cover plate 4 is pivoted on the switch main body 1, the other end of the movable cover plate 4 can swing relative to the switch main body 1, the anti-falling mechanism 8 includes a hook portion 81 disposed on the movable cover plate 4 and an anti-falling block 82 disposed on the sliding member 7, and the anti-falling block 82 slides downwards along with the sliding member 7 to drive the other end of the movable cover plate 4 to swing downwards relative to the switch main body 1, so that the hook portion 81 is combined with the anti-falling block 82. When the sliding part 7 slides downwards to be in contact with the movable cover plate 4, namely when the sliding part 7 moves from the position shown in fig. 1 to the position shown in fig. 3, the movable cover plate 4 swings downwards to conduct the contact piece assembly, the electromagnet 2 is electrified to downwards adsorb the magnetic attraction piece 5 on the movable cover plate 4, the magnetic attraction piece 5 is arranged on the inner end face of the movable cover plate 4, in the process, the anti-falling block 82 enters the hook part 81, the sliding part 7 has a rising trend under the action of the first elastic reset piece 6, and the hook part 81 presses the anti-falling block 82 to prevent the rising movement of the sliding part 7.

Referring to fig. 3, preferably, in order to limit the upward swinging angle of the movable cover plate 4 relative to the switch main body 1, ensure that the movable cover plate 4 can completely shield the electromagnet 2, prevent foreign matters from vertically falling onto the electromagnet 2, and ensure the normal operation of the toaster switch assembly, a limit protrusion 41 is arranged at the position of the movable cover plate 4 adjacent to the pivot joint, and a stop surface 11 abutting against the limit protrusion 41 is arranged on the switch main body 1.

Referring to fig. 3, in some embodiments of the present invention, the hooking groove of the hooking portion 81 includes a vertical section 811 disposed on the upper end surface of the movable cover plate 4 and a horizontal section 812 connected to the vertical section 811, the upper end of the anti-falling block 82 has an anti-falling surface 821 matched with the horizontal section 812, the anti-falling surface 821 abuts against the horizontal section 812 under the driving action of the second elastic restoring member 9, and meanwhile, the electromagnet 2 attracts the magnetic attracting member 5, and the horizontal section 812 maintains a state of pressing the anti-falling surface 821.

Referring to fig. 2, 4 and 6, in some embodiments of the present invention, the contact assembly includes a fixed contact 31, a movable contact 32, a switch link 33 and a driving rod 34, the fixed contact 31 is fixedly disposed on the switch main body 1, one end of the switch link 33 is rotatably connected to the switch main body 1, the other end of the switch link 33 is connected to the driving rod 34 through the first elastic reset piece 6, the driving rod 34 extends out of the switch main body 1 upwards and can abut against one end of the movable cover 4 swinging downwards, the movable contact 32 elastically abuts against the lower portion of the switch link 33 to follow the switch link 33 to swing downwards and electrically connect with the fixed contact 31, and the switch link 33 is further connected to a third elastic reset piece 35 for driving the switch link 33 to swing upwards and reset. When the sliding part 7 moves downwards to be in contact with the movable cover plate 4, the movable cover plate 4 swings downwards to drive the driving rod 34 to press downwards, the driving rod 34 pushes the switch connecting rod 33 to swing downwards through the first elastic resetting part 6, the switch connecting rod 33 swings to drive the movable contact piece 32 to be in contact with the fixed contact piece 31, so that the electromagnet 2 is electrified, the electromagnet 2 adsorbs the magnetic suction part 5 on the movable cover plate 4, and the anti-falling block 82 is combined with the hook part 81 to prevent the sliding part 7 from being separated from the movable cover plate 4.

Referring to fig. 5 and 6, preferably, in order to facilitate assembly of various parts of the toaster switch assembly, the switch body 1 includes a base 12 and a housing 13 snap-connected to the base 12, a receiving space is defined between the base 12 and the housing, the switch connecting rod 33 is located in the receiving space, the fixed contact piece 31 and the movable contact piece 32 are clamped at a connection position of the base 12 and the housing 13, one end of each of the fixed contact piece 31 and the movable contact piece 32 extends out of the switch body 1 to be connected with an external circuit, the other end of the fixed contact piece 31 is located in the receiving space, and the other end of the movable contact piece 32 is suspended above the other end of the fixed contact piece 31 and elastically abuts against a lower portion of the switch connecting rod 33.

Referring to fig. 5, in order to further facilitate the installation and positioning of the fixed contact piece 31 and the movable contact piece 32, a plurality of positioning mounting posts (not shown in the figure) extending downward are disposed on the housing 13, through holes 36 corresponding to the positioning mounting posts one by one are disposed on the fixed contact piece 31 and the movable contact piece 32, and an avoiding hole groove 121 for avoiding the positioning mounting posts is disposed on the base 12.

The third elastic reset piece 35 is a first pressure spring, the base 12 is provided with a positioning column 122 for inserting the lower end of the first pressure spring in a sleeved manner, and the lower end surface of the switch connecting rod 33 is provided with a positioning counter bore (not shown in the figure) for positioning the upper end of the pressure spring, so that the first pressure spring is prevented from being separated from the position between the base 12 and the switch connecting rod 33.

Referring to fig. 6, preferably, the switch main body 1 is provided with a guide through hole 14 corresponding to the driving rod 34, the upper portion of the guide through hole 14 is provided with a throat, a guide protrusion 341 capable of moving up and down in the guide through hole 14 and preventing the guide protrusion from separating from the throat is provided on the circumferential surface of the driving rod 34, the first elastic resetting member 6 is a second compression spring accommodated in the guide through hole 14, the switch link 33 is provided with a guide post 332 facing the guide through hole 14, and two ends of the second compression spring are respectively sleeved on the guide post 332 and the driving rod 34.

The above examples are merely preferred embodiments of the present invention, and other embodiments of the present invention are possible, such as a reasonable combination of the technical solutions described in the examples. Those skilled in the art can make equivalent changes or substitutions without departing from the spirit of the present invention, and such equivalent changes or substitutions are included in the scope set forth in the claims of the present application.

Claims

1. A toaster switch assembly, comprising:

the switch comprises a switch main body (1), wherein an electromagnet (2) is arranged on the switch main body (1), and the electromagnet (2) is connected with a contact piece assembly for controlling the electromagnet to be powered on or off;

the movable cover plate (4) is movably arranged on the switch main body (1), is positioned above the electromagnet (2) and always shields the electromagnet (2), a magnetic attraction piece (5) matched with the electromagnet (2) is arranged on the movable cover plate (4), and the movable cover plate (4) is connected with a first elastic reset piece (6) driving the magnetic attraction piece (5) to be separated from the electromagnet (2);

slider (7), along vertical direction slip setting and be in the top of removable cover (4), slider (7) can drive during the lapse can drive removable cover (4) downstream and link the contact subassembly switches on so that electro-magnet (2) circular telegram, slider (7) are connected with and drive its second elasticity that rises in order to keep away from removable cover (4) and reset piece (9).

2. The toaster switch assembly of claim 1, wherein:

an anti-falling mechanism (8) is arranged between the sliding part (7) and the movable cover plate (4), and when the magnetic part (5) is attracted with the electromagnet (2), the anti-falling mechanism (8) can prevent the sliding part (7) from being separated from the movable cover plate (4) upwards.

3. The toaster switch assembly of claim 2, wherein:

one end pin joint of removable cover (4) is in on the switch main part (1), the other end of removable cover (4) is the swing of switch main part (1) relatively, anti-disengaging mechanism (8) are including setting up hook portion (81) on removable cover (4) and anti-disengaging block (82) of setting on slider (7), anti-disengaging block (82) are followed slider (7) and are slided downwards and order about the relative switch main part (1) downswing of the other end of removable cover (4) so that hook portion (81) combine together with anti-disengaging block (82).

4. The toaster switch assembly of claim 3, wherein:

a limit convex part (41) is arranged at the position, close to the pivoting position, of the movable cover plate (4), and a stop surface (11) which is abutted against the limit convex part (41) is arranged on the switch main body (1).

5. The toaster switch assembly of claim 3, wherein:

the hook groove of the hook part (81) comprises a vertical section (811) arranged on the upper end face of the movable cover plate (4) and a horizontal section (812) connected with the vertical section (811), and the upper end of the anti-falling block (82) is provided with an anti-falling face (821) matched with the horizontal section (812).

6. The toaster switch assembly of claim 3, wherein:

the contact piece assembly comprises a fixed contact piece (31), a movable contact piece (32), a switch connecting rod (33) and a driving rod (34), the fixed contact piece (31) is fixedly arranged on the switch main body (1), one end of the switch connecting rod (33) is rotatably connected to the switch main body (1), the other end of the switch connecting rod (33) is connected with the driving rod (34) through a first elastic reset piece (6), the driving rod (34) upwards extends out of the switch main body (1) and can be abutted against one end of the movable cover plate (4) which swings downwards, the movable contact piece (32) is elastically abutted against the lower portion of the switch connecting rod (33) so as to swing downwards along with the switch connecting rod (33) and be electrically connected with the fixed contact piece (31), and the switch connecting rod (33) is further connected with a third elastic reset piece (35) which drives the switch connecting rod (33) to swing upwards to reset.

7. The toaster switch assembly of claim 6, wherein:

the switch main body (1) comprises a base (12) and a shell (13) connected to the base (12) in a buckling mode, an accommodating space is formed between the base (12) and the shell, a switch connecting rod (33) is located in the accommodating space, a fixed contact piece (31) and a movable contact piece (32) are clamped at the connecting position of the base (12) and the shell (13), one ends of the fixed contact piece (31) and the movable contact piece (32) extend out of the switch main body (1) to be connected with an external circuit, the other end of the fixed contact piece (31) is located in the accommodating space, and the other end of the movable contact piece (32) extends to the position above the other end of the fixed contact piece (31) in a hanging mode and abuts against the lower portion of the switch connecting rod (33) in an elastic mode.

8. The toaster switch assembly of claim 7, wherein:

the shell (13) is provided with a plurality of positioning and mounting columns extending downwards, the fixed contact piece (31) and the movable contact piece (32) are respectively provided with through holes (36) which are in one-to-one correspondence with the positioning and mounting columns, and the base (12) is provided with an avoiding hole groove (121) for avoiding the positioning and mounting columns.

9. The toaster switch assembly of claim 7, wherein:

the third elastic reset piece (35) is a first pressure spring, a positioning column (122) for sleeving and inserting the lower end of the first pressure spring is arranged on the base (12), and a positioning counter bore for positioning the upper end of the pressure spring is formed in the lower end face of the switch connecting rod (33).

10. The toaster switch assembly of claim 6, wherein:

the switch comprises a switch main body (1), wherein a guide through hole (14) corresponding to a drive rod (34) is formed in the switch main body (1), a necking part is formed in the upper portion of the guide through hole (14), a guide convex part (341) capable of moving up and down in the guide through hole (14) and preventing the drive rod from being separated from the necking part is arranged on the peripheral surface of the drive rod (34), a first elastic reset piece (6) is a second pressure spring accommodated in the guide through hole (14), a guide column (332) facing the guide through hole (14) is arranged on a switch connecting rod (33), and two ends of the second pressure spring are respectively sleeved on the guide column (332) and the drive rod (34).